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3 Commits

Author SHA1 Message Date
Tony Lu
437d3e124d tile: ftrace: fix function_graph tracer issues 
- Add support for ARCH_SUPPORTS_FTRACE_OPS
- Replace the instruction in ftrace_call with the bundle {move r10, lr;
jal ftrace_stub}, so that the lr contains the right value after returning
from ftrace_stub.  An alternative fix might be to leave the instruction
in ftrace_call alone when it is being updated with ftrace_stub.

Signed-off-by: Tony Lu <zlu@ezchip.com>
Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
 2015-04-17 14:01:38 -04:00
Steven Rostedt (Red Hat)
6beecb9562 tile: ftrace: Remove check of obsolete variable function_trace_stop 
Nothing sets function_trace_stop to disable function tracing anymore.
Remove the check for it in the arch code.

Cc: Chris Metcalf <cmetcalf@tilera.com>
Acked-by: Zhigang Lu<zlu@tilera.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
 2014-07-18 13:57:03 -04:00
Tony Lu
a61fd5e366 tile: support ftrace on tilegx 
This commit adds support for static ftrace, graph function support,
and dynamic tracer support.

Signed-off-by: Tony Lu <zlu@tilera.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
 2013-08-30 10:20:13 -04:00